A Product Mindset essay applies 15 mental models to automation scope and trust in agentic products. It recommends comparing cost per task completed within tolerance rather than token prices and specifying success rates, abstention and failure handling alongside behavior. Autonomy is treated as a workflow-specific setting earned through validation, not a single on/off choice. Its advice favors accumulating data, failure logs and evaluations; illustrative success rates and economic principles are not experimental results that automatically generalize to every agent.